JPS6040081Y2 - bottom plow - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a bottom plow, and more specifically, to a bottom plow equipped with a core.

The bottom plow reverses the direction of plowing of cultivated soil in fields, pastures, etc., turns it into a swollen and soft state, and creates a granular structure that provides water retention and water permeability, while also burying organic matter on the surface of the cultivated soil above and below the reversed layer. It is used to rejuvenate the soil, and the deeper the tillage, the more completely the intended purpose can be achieved.

However, even if it is possible to easily reverse tillage of the topsoil, there is a hard layer under the topsoil, and further below that there is subsoil, so these hard disks and subsoil must be crushed to make the field soil. There are no great expectations for improvements in water retention capacity, etc.

Therefore, a bottom plow has been provided which is capable of crushing the subsoil under the hardbed at the same time as tilling and inverting the topsoil, that is, a bottom plow shown in a schematic side view in FIG. 1.

This bottom plow is constructed by fixing a beam 6a of the subsoil 6 to a beam 5 that supports the moldboard 1, thin 2, shear 3, and land side 4.As a matter of course, the subsoil 6 is In other words, it is designed to reach the lower layer of the topsoil, making it possible to perform subsoil crushing at the same time as reversing tillage of the topsoil.

However, with this bottom plow, there are buried layers in the subsoil,
If there is an obstacle S, such as a buried tree, will the Shindori moving with the traction force of the tractor destroy the obstacle?
Or, the heart and earth bond will be destroyed.

Therefore, this idea was developed so that if the subsoil, which crushes the hard disk and subsoil, moves while avoiding obstacles, the destruction described above will not occur, so that the subsoil♀ can temporarily avoid obstacles. For this purpose, it is long enough to allow diving to an appropriate depth, one end is fixed to the bottom or an attached member of the bottom, or a support member, and the other end is free. The fixed end is tilted backwards in the direction perpendicular to the plowing direction, and the free end side is lowered, with a blade edge formed on the leading edge in the direction of plowing. It is characterized by the fact that

The configuration of this invention will be explained below with reference to the embodiments shown in FIG. 2 and subsequent figures.

First of all, FIG. 2 is a schematic plan view of the bottom plow, which also shows the state of the field, that is, uncultivated land is shown as Y, cultivated land is shown as R, and mold board 1 is attached to the shear 11 through thin 12.
3 is fixed, and a land side 14 extends from the tip of the sear 11 to the rear in the traveling direction.

A core 20 is provided with one end fixed to a support member 15 that supports the bottom from the back side of the moldboard 13.

This core 20 is composed of a broken end 22 that curves along a vertical plane from a fixed end 21 having a mounting hole 21a and extends laterally as a free end, and a blade edge 22a is formed on the front edge. The whole slopes backward in the plowing direction, and
It is also inclined in a direction perpendicular to the direction of plowing progress.

In other words, the base is high on the front side and low on the rear side so that it can run over obstacles, and moreover, the fixed end side is high and the free end, which is the crushing end side, is low.

The step dimension h1 of the crushing end 22 relative to the fixed end, that is, the descending dimension, is determined in relation to the condition of the field in which the subsoil 20 is to reach the subsoil, and its width W is determined by the plowing of the pom plow. It is wider than the width and reaches approximately the center of the layer height R.

In the bottom plow of this invention, the fixed end 21 of the subsoil 20 is fixed to its constituent members, and the free end of the subsoil 20 is inclined slightly backward from the direction perpendicular to the direction of travel. , and is inclined so that its free end side is the lowest.

Since the bottom plow of this invention has the above-mentioned configuration, not only can the top of the layer be plowed by the bottom, but the crushing end 22 of the subsoil 20 can also be used to plow the subsoil under the hardboard using the suction provided by the plow. If there is an obstacle S in the subsoil that obstructs the course of the subsoil 20, the free end of the subsoil 20 will be crushed. Since it is tilted slightly backward from the direction perpendicular to the direction of travel, and the free end side, in other words, the crushed end is in a lowered state, it is likely that the shudobani 20 will run onto an obstacle or rotate due to the tractor's traction. to avoid this (in this case, the bottom's posture will also change temporarily).

This prevents destruction of the subsoil 20, the bottom constituent members, and even the pitch portion.

As is clear from the above explanation, the bottom plow of this invention has one end of the plow fixed to the bottom constituent members or the members attached thereto, and the other end is free. The blade edge is provided on the front side in the direction, and furthermore, the entire shindoki is tilted slightly backwards from the direction perpendicular to the direction of travel, and the free end is tilted in the lowest position, so the shindoki is prevented from running over obstacles. or rotate to avoid this and avoid destruction.

[Brief explanation of drawings]

FIG. 1 is a side view of a conventional bottom plow with a core, FIG. 2 is a plan view of the bottom plow according to this invention, FIG. 3 is a plan view of the core alone, and FIG. 4 is a side view of the same. 11...Sheya, 12...Shin, 13
...Mold board, 14 ... Land side, 20 ... Shindo pear, 21 ... Fixed end, 22 ... Crushing end, 22a...Blade edge.

Claims (1)

[Scope of utility model registration request] In a bottom plow comprising a bottom and a subsoil furrow attached to the bottom or its attached member, the free end is slightly rearward of the direction perpendicular to the direction of plowing progress and inclined downward in a plane lower than the bottom. A bottom plow equipped with a plow and a cutting edge formed on the leading edge of the free end.